Re: Your honest rating for X3 if Prof. X and Cyclops had not died
The problem with the film wasn't in Xavier's death it was in Cyclops'. I would change the script so that more time is placed on the emotional states of not only Jean but the three people closest to her Xavier (father like mentor), Cyclops (FiancÚ) and Storm (Best Friend).
I would take out the cure completely as well and insert the hellfire club.
And of course Fox would have none of it cause there wouldn't be much room for Wolverine.
X3 is a 5.5-6/10 film.